Operating Mode; Maintenance - Wilo Medana PE3-350EA Manual Del Usuario

9.3

Operating mode

10

Maintenance

Installation and operating instructions Wilo-Medana PE3
Maintenance
WARNING
Risk of burns
Zero flow operation causes the water temperature to rise.
1. Control button
2. Red Led
3. Green Led
Auto Mode: 3 types of operation programmed according to the desired pressure.
Manual Mode: constant pressure with high or medium speed.
(see table below)
Medana PE3-350EA
Display indicator
Green Led
Red Led
Green/Red Led + (suction
pressure)
Green/Red Led flashing sim-
ultaneously
Green/Red Led flashing by
turns
ƒ
When the power is applied, operating in Mode 1
ƒ
When push the control button, changing Mode as below
Medana PE3-350EA
Auto Mode 1 -> Auto Mode 2
Push the button 1 time
Auto Mode 2 -> Auto Mode 3
Push the button 2 time
Auto Mode 3 -> Auto Mode 1
Push the button 3 time
Manual Mode 1 -> Manual Mode 2
Push the button 4 time
Manual Mode 2 -> Manual Mode 1
Push the button 5 time
All maintenance work must be carried out by authorised and qualified personnel.
WARNING
Risk of electric shock
Danger from electrical current must be eliminated. Before carrying out electrical
work, the pump must be de-energised (switched off) and protected against unau-
thorised restarting. It is recommended to disconnect the plug.
ƒ
No special maintenance required during operation
ƒ
Keep the pump clean
ƒ
If the pump is deactivated for a long period and there is no risk of freezing, it is best
not to drain the pump.
In the event of prolonged absence, be sure to cut off the mains water supply and
protect the installation from freezing.
Mode
Auto Mode 1 Pressure range
Auto Mode 2 Pressure range
Auto Mode 3 Pressure range
Manual Mode 1
Manual Mode 2
en
Condition
2
0.8 -1.6kgf/cm
2
1.3 -1.6kgf/cm
2
1.3 -1.6kgf/cm
Constant high
speed driving
Constant medium
speed driving
13